Metal car-roof.



LPATENTED JAN. 9, 1906.

- J. 0. CAMPBELL. METAL GAR RODP.

APPLICATION FILED MAY 16, 1904.

Ill/Ir!!! r UNITED STATES VQFFICE, CAMPBELL F i e-AGO. i INOISP m ETAL OA -Room .uo. $09,907. Specification of L'e tters Patent. k i flPe-teiut'ed Jan; 9, 1.906. I Application filed May'lB,lQO4. fierial No. 208,149. i

To all whom it warty concern." 1

' Be it known that I, JOHN C. CAMPBELL, a citizen of the'Unit'ed States, and a resident of Chicago, in thecounty of Cook and State of the purline-st-rips Ey-andthe outer purline- Strips F, as will be readily understood ,by those familiar with' freight-car construction. M y improved roof is formed of a series-of gal- 60 I end 01 this specification.

Illinois ,have invented certain new and useful Improvements-in Metal Car-Roofs, of which the following is a full, clear, and exact (l escripti'on. i

The present invention has relation more particularly to that class of car-roofs gencn all known as outside metal roofs; and the invention consists in the features of iniproveincnt hereinafter described, illustrated in the accompanying drawings, and more particularly pointed. out in the claims at the In the construction of outside metal carrool's it has-been the connnou practiceto bend downwardly the outside edges or save portions of the metal sheets that comprise the roof and to secure these downwardlybent edges by means of nails. A serious objection to such construction is that in practice-it is found that the metal sheets creekor.

break adjacent the eaves, this cracking or breaking of the sheets being due partly to the expansion and contraction of the metal under variations of temperature, but 'inore especially to the great strains thrown upon the sheets incident to the violent service to which the cars are subjected,

My present invention has "for its object to provide an outside metal car-roof the sheets of which are so joined together anrl' to the body of the car that they shall yield sull-iciently to compensate for the expansion and contraction of the metal and to allow also for the racking strains to which the car is subjected in service.

Figure 1 is a perspective view of a portion of the car-roof to which my improved outer metal roof is applied, certain of the parts being shown in section. Fig. 2 is a detail perspective view of one of the transverse sections of the improved metal roof. Fig. 3 is a detail section through the ridge-pole and center of the car-roof. Fig. 4 is :1v detail section showing an inner face view of the dc pending end flanges oi" the transverse metalroof sections, and Fig. 5 is a detail perspec tive view of the retainingstrip for the improved metal roof.

A desi nates the body of the car, that may be provided with the wooden roof-beards B in the usual manner, these root boards being sustained by the ridge-pole C, the cal-lines D,

vanized-iron roof-sheets G, that extend transverse'ly of the-car. One edge ofeach of the sheets. G is formed with an upturned flange g and the other edge of each sheet isformed with a U-shaped flangeg'; l/Vhen. the sheets are set together in position upon thereof the straight flange g of one sheet will extend within the folds of the U-sha ed flange 9'- of the next adjacent strip, as c early shown Fig. l of the drawings. edges of the strips are cut away, as at 9 andv are preferably provided withthe upwardlyextending semicircular flanges 9 these flanges g being of sullicient height to prevent water passing down through formed by the cut-away spaces g The ends of each strip are bent downwardly and re verted toior n the U-shaped flanges g, that extend along the caves of the car-roof, as

clearly shown inFig. 1 of the drawin s. The

inner folds or sections g of each 0' the,U-,- shaped llangesg is shorter than the outer folds, and when the strips are set together to form the roof as shown in Fig. 1 of the drawings,the edges of the folds or sections 9 abut or approximate each other. The U-shaped flanges g are formed at their opposite. ends with the overlapping or extending portions g and 9 the underlying projecting portions g being preferably longer th an the portions g 9 In forming my improved root the sheets will be set together with their flanges q and g interlocking, as shown, and with the apping portions or extensions 9 sitting beneath the-i extensions g as indicated in dotted and full lines in. Figs. 1 and 4 of the drawing Saddle-blocks H, which carry runnin boards 11, Will then be set over the inte locked flanges g and g of the sheets in lnanner well understood, thhsc saddle-bloclg s ll being formed with longitudinal, grooves to r ceive the flanges oi the sheets. saddle-blocks TI is formed with a bolthol through which .will pass a bolt K, that pass downward through tl'ic'ruhmvay spaces g of 10 the sheets and through. the roof-boards andf ridge-pole C, the inner end of the bolt K being; furnished with a retaining-nut 1.1-. As the, sheets G are thusset together retaining plates or strips M will he slipped .edgcwisc. between 'no the cave-flanges g of the strips and the side. Walls of the car, and these retaining plates v.A.t the center the 7b the holes 75 Each of the: 7

Correction in Letters Patent li o. 809.907.

or strips M are formed each with a downwardly-turned flange m, that will interlock with the inner section g of the eave-flanges g". The lower portions of the retaining plates or strips M extend below the eaveeflanges g of the roof-sheets and are securelv fastened to the car by nails P, as shown in the drawings.

FroIn the foregoing description it will be seen that the sheets G are not nailed to the car-body, but are securely held in place upon the r0of-b0ards by reason of the interlocking of the eave-flanges g of the roof-sheets with the reverted flanges m of the retaining plates or strips M. Preferably the flanges g at the Outer ends of the sheets. will be of suI'Iicient width and sufficiently open not only to allow for readily setting the retaining plates or strips M in position, but also to allow for-the, contraction and expansion of the metal of the rool sheets and to allow also sullieient yielding of the metal at such points to compensate for the strains upon the sheets incidentto the violent service to which the car is subjected. The retaining plates or strips M may be of any suitable length; but preferably these plates or strips are about equal in length to the width of the roof-sheets G and are arranged to break joints with the sheets, as indicated in the drawings.

Not only does my lllX'UtltlOll all'ord a most effective means for holding the car-roof in position upon the car, but it will be seen that the construction of the parts is such as to most effectively prevent the access of water around the caves of the roof or at the joints of the roof-sheets.

Having thus dcscribcdmy invention, what I claim as new, and desire to secure by Letters Patent. is

1. A car-roof comprising roof-sheets having their ends formed with reverted cave-flanges, the caves portion ol' one at least of said sheets being provided with a laterally-externling portion overlapping the joint between adjoining sheets, and rctaining plates engaging the reverted cave-flanges of the roof-sheets.

Allen being assignce ol' one-third assignment in this ollice; and that the said Ofiiee.

l [51min] i l l x I I in Metal Car-Roots, wereerroneously issued to said Campbell as 2. A car-roof comprising roof-sheets naving their ends formed with downwardly-extending U-shaped cave-flanges, the inner portions of said cave-flanges being shorter than the outer portions thereof, said outer portions being arranged to overlap, and retaining plates or strips engaging the U-shaped caveflanges of said roof-sheets.

3. A car-roof comprising roof-sheets having their edges formed with interlocking flanges and having their ends formed with U-shaped eave-flanges, the inner portions of said eaveflanges being arranged to abut and theouter portions of said cave-flanges being arranged to overlap, in combination with retaining plates or strips havin flanges interlocking with the cave-flanges oi the roof-sheets.

4. A metal car-roofcomprising roof-sheets extending transversely of the car and having flanged interlocking edges, the edges of the sheets being formed at their centers with cut-' away spaces and with upturned llangcs about sa d spaces in combinationwith saddle-blocks and rctainingb olts for holding said sheets in position.

5. A car-roof, comprising metal sheets extending transversely of the car and having their outer ends reverted to form U-shapcd bends at the eaves ol" the roof, in combination with metal retaining-plates secured to the car and extending lengthwise thereof, the free edges of said retaining-plates being rcbcnt to form flanges that set within the U-shapcd cave-flanges of the roof-sheets, the said U- shaped flanges of the roof-sheets and the rebcnt flanges of the retainlug-plates being ,spaced both laterally and cdgcwisc of the latter to permit universal play between the Fool"- shccts and the car, said roof-sheets being unsecured to the car-rool" other than substantially at the ridge, by said flanges, and at the ends of the car.

JOHN C. CAMPBELL. \Nitncssts:

Gno. l. l*rsiir-1n,.lr., financiers ADAM K.

It is hereby certified that Letters Patent No. 809,907, granted January 9 1906 upon the application of John C. Campbell. of Chicago, Illinois, for an improvement owner of the entire interest in said invention; that. szLid Letters Patent should have been issued to the inventor John C. Campbell mm! John If. A Men of Chicago, Illinois, jointly, said John interest in said patent, as shown by the record of Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Signed and sealed this th day of January, A. 1)., i906.

F. I. ALLEN,

Commissioner of Patents.

Correction in Letters Patent li o. 809.907.

or strips M are formed each with a downwardly-turned flange m, that will interlock with the inner section g of the eave-flanges g". The lower portions of the retaining plates or strips M extend below the eaveeflanges g of the roof-sheets and are securelv fastened to the car by nails P, as shown in the drawings.

FroIn the foregoing description it will be seen that the sheets G are not nailed to the car-body, but are securely held in place upon the r0of-b0ards by reason of the interlocking of the eave-flanges g of the roof-sheets with the reverted flanges m of the retaining plates or strips M. Preferably the flanges g at the Outer ends of the sheets. will be of suI'Iicient width and sufficiently open not only to allow for readily setting the retaining plates or strips M in position, but also to allow for-the, contraction and expansion of the metal of the rool sheets and to allow also sullieient yielding of the metal at such points to compensate for the strains upon the sheets incidentto the violent service to which the car is subjected. The retaining plates or strips M may be of any suitable length; but preferably these plates or strips are about equal in length to the width of the roof-sheets G and are arranged to break joints with the sheets, as indicated in the drawings.

Not only does my lllX'UtltlOll all'ord a most effective means for holding the car-roof in position upon the car, but it will be seen that the construction of the parts is such as to most effectively prevent the access of water around the caves of the roof or at the joints of the roof-sheets.

Having thus dcscribcdmy invention, what I claim as new, and desire to secure by Letters Patent. is

1. A car-roof comprising roof-sheets having their ends formed with reverted cave-flanges, the caves portion ol' one at least of said sheets being provided with a laterally-externling portion overlapping the joint between adjoining sheets, and rctaining plates engaging the reverted cave-flanges of the roof-sheets.

Allen being assignce ol' one-third assignment in this ollice; and that the said Ofiiee.

l [51min] i l l x I I in Metal Car-Roots, wereerroneously issued to said Campbell as 2. A car-roof comprising roof-sheets naving their ends formed with downwardly-extending U-shaped cave-flanges, the inner portions of said cave-flanges being shorter than the outer portions thereof, said outer portions being arranged to overlap, and retaining plates or strips engaging the U-shaped caveflanges of said roof-sheets.

3. A car-roof comprising roof-sheets having their edges formed with interlocking flanges and having their ends formed with U-shaped eave-flanges, the inner portions of said eaveflanges being arranged to abut and theouter portions of said cave-flanges being arranged to overlap, in combination with retaining plates or strips havin flanges interlocking with the cave-flanges oi the roof-sheets.

4. A metal car-roofcomprising roof-sheets extending transversely of the car and having flanged interlocking edges, the edges of the sheets being formed at their centers with cut-' away spaces and with upturned llangcs about sa d spaces in combinationwith saddle-blocks and rctainingb olts for holding said sheets in position.

5. A car-roof, comprising metal sheets extending transversely of the car and having their outer ends reverted to form U-shapcd bends at the eaves ol" the roof, in combination with metal retaining-plates secured to the car and extending lengthwise thereof, the free edges of said retaining-plates being rcbcnt to form flanges that set within the U-shapcd cave-flanges of the roof-sheets, the said U- shaped flanges of the roof-sheets and the rebcnt flanges of the retainlug-plates being ,spaced both laterally and cdgcwisc of the latter to permit universal play between the Fool"- shccts and the car, said roof-sheets being unsecured to the car-rool" other than substantially at the ridge, by said flanges, and at the ends of the car.

JOHN C. CAMPBELL. \Nitncssts:

Gno. l. l*rsiir-1n,.lr., financiers ADAM K.

It is hereby certified that Letters Patent No. 809,907, granted January 9 1906 upon the application of John C. Campbell. of Chicago, Illinois, for an improvement owner of the entire interest in said invention; that. szLid Letters Patent should have been issued to the inventor John C. Campbell mm! John If. A Men of Chicago, Illinois, jointly, said John interest in said patent, as shown by the record of Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Signed and sealed this th day of January, A. 1)., i906.

F. I. ALLEN,

Commissioner of Patents. 

